tp5文件上传

/**
 * 文件上传
 * @param string $filename
 * @param string $path
 * @param array $type
 * @return array
 */
function upload_file($filename='',$path='',$type=[]){
    $max_filesize = 8388608;//8M
    if(empty($type))
        $type = ['xls','xlsx','jpeg','png','jpg','gif'];
    if(empty($path))
        $path = ROOT_PATH . 'public' . DS . 'uploads'.DS;
    if(empty($filename))
        return ['code'=>'-1','msg'=>'文件名不能为空'];
    $file = request()->file($filename);
    if($file){
        if($file->getSize() <= $max_filesize){
            $info = $file->move($path);
            if(!in_array($info->getExtension(),$type)){
                unlink($path.$info->getSaveName());
                return ['code'=>'-5','msg' => '文件类型有误'];
            }elseif($info){
                //上传成功
                $msg = array(
                    'ext'     => $info->getExtension(),
                    'path'    => $path.$info->getSaveName(),
                    'filename'=> $info->getFilename()
                );
                return ['code'=>1,'msg'=>$msg];
            }else{
                //上传失败，获取错误信息
                return ['code'=>0,'msg'=>$info->getError()];
            }
        }elseif($file->getSize() > $max_filesize){
            return ['code'=>'-3','msg' => '上传的文件不能大于8M'];
        }else{
            return ['code'=>'-4','msg'=>'上传文件异常'];
        }
    }else{
        return ['code'=>'-2','msg'=>'上传文件失败'];
    }
 
}